阅读说明：本技术 浅埋矩形顶管背土效应分析方法 (Back soil effect analysis method for shallow-buried rectangular top pipe ) 是由 石垚 于 2021-02-07 设计创作，主要内容包括：本发明公开了一种浅埋矩形顶管背土效应分析方法,涉及岩土工程领域,该浅埋矩形顶管背土效应分析方法使用的设备包括安装在始发井远离矩形顶管隧道一侧地面上的底座,底座顶部垂直设有L形杆状的支撑架,支撑架朝向矩形顶管隧道上部,矩形顶管隧道顶部底面上均匀设有若干测距基准片,支撑架上套有可以自由滑动的滑动管,滑动管底部安装有距离传感器,距离传感器通过数据线与分析终端连接。(The invention discloses a method for analyzing the back soil effect of a shallow-buried rectangular jacking pipe, which relates to the field of geotechnical engineering.)

1. A method for analyzing a back soil effect of a shallow-buried rectangular top pipe is characterized by comprising the following steps: the equipment used by the shallow buried rectangular top pipe back soil effect analysis method comprises a base (8) which is arranged on one side of an originating well (2) and far away from a rectangular top pipe (1) and on the ground, the top of the base (8) is vertically provided with an L-shaped rod-shaped support frame (6), the support frame (6) faces the upper portion of the rectangular top pipe (1) and the upper portion of a tunnel, a plurality of distance measurement reference sheets (5) are uniformly arranged on the bottom surface of the top of the rectangular top pipe (1) and the bottom surface of the tunnel, a sliding pipe (7) capable of sliding freely is sleeved on the support frame (6), a distance sensor (3) is arranged at the bottom of the sliding pipe (7), the distance sensor (3) is connected with an analysis terminal (4) through a data line:

firstly, fixing a base (8) on the ground on one side of a tunnel of a launching well (2) far away from a rectangular top pipe (1) by using a foundation bolt, and ensuring that a support frame (6) faces the upper part of the tunnel of the rectangular top pipe (1);

secondly, the distance sensor (3) is connected with the analysis terminal (4) through a data line, and a plurality of distance measurement reference sheets (5) are uniformly arranged on the bottom surface of the top of the tunnel of the rectangular top pipe (1);

thirdly, constructing the rectangular jacking pipe (1) in the tunnel through the starting well (2);

sliding a sliding pipe (7) on a support frame (6) at intervals, monitoring the protruding or sinking distance between each distance measurement reference piece (5) and the original reference ground by using a distance sensor (3), and transmitting data to an analysis terminal (4) through a data line;

and fifthly, calculating specific data of the back soil effect of the shallow rectangular top pipe through the analysis terminal (4).

2. The method for analyzing the back soil effect of the shallow rectangular roof pipe of claim 1, wherein: the base (8) and the support frame (6) are both made of aluminum alloy, and the base (8) and the support frame (6) are connected through welding.

3. The method for analyzing the back soil effect of the shallow rectangular roof pipe of claim 1, wherein: the sliding pipe (7) is made of aluminum alloy, and the sliding pipe (7) is connected with the distance sensor (3) through a screw.

4. The method for analyzing the back soil effect of the shallow rectangular roof pipe of claim 1, wherein: the analysis terminal (4) is a computer device.

Technical Field

The invention relates to the field of geotechnical engineering, in particular to a method for analyzing a back soil effect of a shallow rectangular top pipe.

Background

The rectangular pipe jacking construction process is mainly applied to clay, silt clay, silty clay, sandy silty soil and other soft soil layers at present. During construction, roads can not be excavated, traffic is not sealed, pipelines are not moved, and high harmony of city construction and city operation is realized. The back soil effect is that in the jacking process of the rectangular push bench, soil bodies within the height of an unloading arch on the upper part are slightly restrained by surrounding soil bodies, the soil bodies directly collapse and adhere to the upper part of the push bench, the collapse and adhesion range is larger and larger along with the lengthening of the jacking distance, the collapse and adhesion soil bodies are more and more, the jacking difficulty of the push bench is caused, and meanwhile, the phenomenon that the soil bodies on the earth surface in the influence range are heavy is caused. The existing method for analyzing the back soil effect of the shallow-buried rectangular jacking pipe is more traditional, and detection on the construction ground of the rectangular jacking pipe in a construction site is not comprehensive enough, so that the measurement and analysis results are not accurate enough, and construction accidents are easily caused.

Disclosure of Invention

The invention aims to solve the technical problem of providing a method for analyzing the back soil effect of a shallow-buried rectangular jacking pipe, which can comprehensively and accurately measure the fluctuation height of the rectangular jacking pipe construction ground on a construction site, is more accurate and reliable in measurement and ensures that construction is carried out smoothly.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the equipment used by the method for analyzing the soil back effect of the shallow-buried rectangular jacking pipe comprises a base which is arranged on the ground on one side of an originating well, which is far away from a rectangular jacking pipe tunnel, wherein an L-shaped rod-shaped support frame is vertically arranged at the top of the base, the support frame faces the upper part of the rectangular jacking pipe tunnel, a plurality of distance measuring reference sheets are uniformly arranged on the bottom surface of the top of the rectangular jacking pipe tunnel, a sliding pipe which can slide freely is sleeved on the support frame, a distance sensor is arranged at the bottom of the sliding pipe, and the distance sensor.

The method for analyzing the back soil effect of the shallow rectangular top pipe comprises the following steps:

(1) fixing a base on the ground on one side of the starting well, which is far away from the rectangular pipe-jacking tunnel, by using a foundation bolt, and ensuring that the support frame faces the upper part of the rectangular pipe-jacking tunnel;

(2) connecting the distance sensor with an analysis terminal by a data line, and uniformly arranging a plurality of distance measuring reference sheets on the bottom surface of the top of the rectangular pipe-jacking tunnel;

(3) constructing the rectangular jacking pipe in the tunnel through the starting well;

(4) sliding the sliding pipe on the support frame at intervals, monitoring the protruding or sinking distance between each distance measurement reference piece and the original reference ground by using a distance sensor, and transmitting data to an analysis terminal through a data line;

(5) and calculating specific data of the back soil effect of the shallow rectangular top pipe through an analysis terminal.

Preferably, the base and the support frame are both made of aluminum alloy and are connected through welding.

Preferably, the sliding tube is made of aluminum alloy, and the sliding tube is connected with the distance sensor through a screw.

Preferably, the analysis terminal is a computer device.

The beneficial effect of adopting above technical scheme is: the method for analyzing the soil back effect of the shallow-buried rectangular top pipe comprises the steps of sliding a sliding pipe on a support frame at intervals, monitoring the protruding or sinking distance between each distance measurement reference piece and the original reference bottom surface by using a distance sensor, and transmitting data to an analysis terminal through a data line. And calculating specific data of the back soil effect of the shallow rectangular top pipe through an analysis terminal. The method for analyzing the back soil effect of the shallow-buried rectangular jacking pipe can comprehensively and accurately measure the fluctuation height of the rectangular jacking pipe construction ground in a construction site, the measurement is more accurate and reliable, and the smooth construction is guaranteed.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the method for analyzing the back soil effect of the shallow rectangular top pipe.

The system comprises a rectangular top pipe 1, an originating well 2, a distance sensor 3, an analysis terminal 4, a distance measurement reference sheet 5, a support frame 6, a sliding pipe 7 and a base 8.

Detailed Description

The following describes a preferred embodiment of the method for analyzing the back soil effect of the shallow rectangular top pipe in detail with reference to the accompanying drawings.

Fig. 1 shows a specific implementation of the method for analyzing the back soil effect of the shallow rectangular top pipe:

as shown in figure 1, the equipment used in the shallow-buried rectangular jacking pipe back soil effect analysis method comprises a base 8 which is arranged on the ground on one side of an originating well 2 far away from a rectangular jacking pipe 1 tunnel, an L-shaped rod-shaped support frame 6 is vertically arranged at the top of the base 8, the support frame 6 faces the upper part of the rectangular jacking pipe 1 tunnel, a plurality of distance measuring reference sheets 5 are uniformly arranged on the bottom surface of the top of the rectangular jacking pipe 1 tunnel, a sliding pipe 7 capable of freely sliding is sleeved on the support frame 6, a distance sensor 3 is arranged at the bottom of the sliding pipe 7, and the distance sensor 3 is connected with an analysis terminal 4 through.

The method for analyzing the back soil effect of the shallow rectangular top pipe comprises the following steps:

(1) fixing a base 8 on the ground on one side of the originating well 2, which is far away from the rectangular top pipe 1 tunnel, by using a foundation bolt, and ensuring that a support frame 6 faces the upper part of the rectangular top pipe 1 tunnel;

(2) connecting a distance sensor 3 with an analysis terminal 4 by a data line, and uniformly arranging a plurality of distance measuring reference sheets 5 on the bottom surface of the top of the rectangular top pipe 1 tunnel;

(3) constructing the rectangular jacking pipe 1 in the tunnel through the starting well 2;

(4) sliding the sliding tube 7 on the support frame 6 at intervals, monitoring the protruding or sinking distance between each distance measurement reference piece 5 and the original reference ground by using the distance sensor 3, and transmitting data to the analysis terminal 4 through a data line;

(5) and calculating specific data of the back soil effect of the shallow rectangular top pipe through the analysis terminal 4.

Base 8 and support frame 6 are made by the aluminum alloy, and are sturdy and durable, and corrosion resisting property is good, and base 8 and support frame 6 pass through welded connection. The sliding pipe 7 is made of aluminum alloy, is firm and durable, has good corrosion resistance, and is connected with the distance sensor 3 through a screw. The analysis terminal 4 is a computer device, and has powerful functions and convenient and reliable use.

The shallow rectangular top pipe back soil effect analysis method is characterized in that a sliding pipe 7 is slid on a support frame 6 at intervals, the distance between each distance measurement reference piece 5 and the original reference ground is monitored by using a distance sensor 3, and data are transmitted to an analysis terminal 4 through a data line. And calculating specific data of the back soil effect of the shallow rectangular top pipe through the analysis terminal 4. The method for analyzing the back soil effect of the shallow-buried rectangular jacking pipe can comprehensively and accurately measure the fluctuation height of the rectangular jacking pipe construction ground in a construction site, the measurement is more accurate and reliable, and the smooth construction is guaranteed.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.